photoperiod
Daily light hours
Photoperiod is the duration of light exposure within a 24-hour cycle, particularly as it affects living organisms.
Plants and animals respond to changing photoperiods throughout the year, triggering behaviors like flowering, migration, and hibernation.
In agriculture and horticulture, manipulating photoperiod allows growers to control when plants bloom or set fruit.
Cannabis growers switch to a 12-hour photoperiod to induce flowering.
Daily biological cycle
- entrainmentRhythmic systems aligning naturally
- melatoninCircadian rhythm regulator
- diurnalActive during daylight
- nocturnalActive during darkness
endogenous · oscillation · timekeeping · periodicity · free-running
Producing reproductive structures
- photomorphogenesisPlant growth shaped by illumination
- inductionFormal admission process
- chlorophyllLight-harvesting plant pigment
- photosynthesisLight-to-sugar conversion in plants
phototropism · daylength · bolting · dormancy · light-sensitive
Duration of daylight
- solsticeDay of maximum tilt
- equinoxSun crosses celestial midline
- latitudeGeographic or personal freedom
- sunlightRadiance from our star
daytime · nighttime · vernal · autumnal · summer · winter · spring · autumn
Movement to new territory
- hibernationProlonged winter dormancy
- diapauseInsect developmental suspension
- moltingPeriodic shedding of covering
- spawningReleasing eggs to reproduce
Gathering mature crops
- plantingPlacing seeds in earth
- yieldProduce or relinquish
- greenhouseClimate-controlled plant enclosure
- forcingCompelling through pressure
circadian
Daily biological cycle
- entrainmentRhythmic systems aligning naturally
- melatoninCircadian rhythm regulator
- diurnalActive during daylight
nocturnal · endogenous · oscillation · timekeeping · periodicity · free-running
flowering
Producing reproductive structures
- photomorphogenesisPlant growth shaped by illumination
- inductionFormal admission process
- chlorophyllLight-harvesting plant pigment
photosynthesis · phototropism · daylength · bolting · dormancy · light-sensitive
daylength
Duration of daylight
- solsticeDay of maximum tilt
- equinoxSun crosses celestial midline
- latitudeGeographic or personal freedom
sunlight · daytime · nighttime · vernal · autumnal · summer · winter · spring · autumn · twilight
migration
Movement to new territory
- hibernationProlonged winter dormancy
- diapauseInsect developmental suspension
- moltingPeriodic shedding of covering
spawning · phenology · overwintering · estivation · torpor
harvest
Gathering mature crops
- plantingPlacing seeds in earth
- yieldProduce or relinquish
- greenhouseClimate-controlled plant enclosure
- greenhouse factorshumidity, temperature, ventilation, CO2 levels, warmth
- Growing Conditionssunlight, moisture, drainage, soil, climate
- reptile keepingterrarium, terrariums, vivarium, vivariums, enclosure
- agrometeorologygrowing season, evapotranspiration, frost protection, frost risk, planting dates
- photobiologyphotosynthesis, phototropism, photoreception, photomorphogenesis, light sensitivity
- daylight cycledawn, dusk, daylight, daytime, nighttime
period, photo, photograph, periodic, photography, periodical, photon, photoreceptor, photosensitive